Improvement in wood-saw frames



UNITED STATES PATENT OEEICE.

JOHN DILLINGHAM, OF TURNER, MAINE.

IMPROVEMENT IN WOOD-SAW FRAMES.

Specification forming part of Letters Patent No. 34,946, dated April 15, 1862.

To @ZZ whom it may concern: 4

Be it known that l, JOHN DILLINGHAM, of Turner, in the county of Androscoggin, in the State of Maine, have invented a new and useful Improvement on E. S. Olapps Method of Framingr and Straining VVood-Saws, patented July l, 1856, said improvement being called Dillinghams Improved food-Saw Frame; and I do hereby declare that the following is a full and exact description thereof, reference being,` had to the accompanying drawing and to the letters of reference marked thereon.

My invention relates to certa-in improvements in the means of straining the saw; and it consists in the use and combination of an auxiliary frame with sliding,` adjustable dogs or catches, as hereinafter fully described.

That others may understand the manner of constructing and using my improvement, I proceed to describe the same, referring to the accompanying drawing.

In the drawing, A E are the two outer frameepieces, to which the saw is pivoted in the usual manner. l

B D are the auxiliary frame-pieces, connected by the two cross-bars O F. The top cross-bar is provided on its under side with ratchet-teeth, for the purposes hereinafter explained.

The auxiliary or inner frame is provided at G II with metal pivots projecting laterally and t into recesses of the outer frame-piece A E. Two slotted dogs or catches K L are placed upon the upper cross-piece C. Each of them is connected to the upper end of the frame-pieces A E by a rod or equivalent means, which passes through the projecting ends of the inner frame-pieces B D, as represented in drawing.

To strain the saw, the two outer framepieces A E are compressed orsprung toward each other, when by hand the dogs or catches or one ot' them is slipped toward the center of the cross-piece C, which both of the catches embrace, and these catches take hold of the ratchet-teeth on the under side of the crosspiece C, thus securingr the saw in its strained 

